Seiko Cal. 4531 - 421

The 4531-421 is a sought-after Solar piece from Seiko's golden era. Powered by the 4531 caliber with 20j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-0261d13194d3]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1998

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